almost_max almost_min approx generate_random_record generate_random_record generate_random_value generate_random_vector half_max half_min raster_approx temporary_filename

approx() bool approx ( T  test, T  ref, double  tol = 0.01  ) Check whether a test value is approximately equal to a reference value. Floating point values are compared as: |test - ref| / ref < tol Complex values are tested component-wise. Other types are tested for equality.